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jdonnarumma2
Jan 7, 2013, 10:07 AM
Shorted out the red & white wires at furnace to eliminate the thermostat. Unit turns on for 5-6 minutes & then the burners shut off, fan remains on for 1 minute, & then shuts off. Since wires are shorted the electronic ignition starts up again & the 5-6 minutes process repeats.

drtom4444
Jan 22, 2013, 04:57 PM
Sounds like a fan or hi-limit problem, I would go with the fan or the control for fan.